Jury continues deliberations in bridge trial

The jury in the murder trial of a man who threw his daughter off Melbourne's Westgate Bridge remains undecided on a verdict and will be allowed to deliberate late into the night.

Justice Paul Coughlan told jurors this afternoon that if they are not satisfied Arthur Freeman, 37, was mentally impaired when he threw his four-year-old daughter Darcey off the bridge in 2009, then they must find him guilty of murder.

Freeman has pleaded not guilty to murder on the grounds of mental impairment.

The jury, in its fifth day of deliberations, earlier indicated it was having trouble with the evidence of psychiatrists and reaching a unanimous verdict.

It returned with more questions this afternoon, prompting Justice Coughlan to tell jurors they are bound by what he says about the law and it was not open to individual interpretation.

Justice Coughlan refused to read out those questions in open court, but told jurors if they could not reach an agreement after his latest instructions he would not force them to continue.

But the jury has indicated it will sit into the night to continue deliberations.

It was also cautioned against "reasoning backwards", with Justice Coughlan telling jurors that if they are not satisfied Freeman was mentally impaired when he threw Darcey off the bridge, then they must find him guilty of murder.

The jury told the court on Sunday it did not believe it could reach a unanimous verdict.

Several jurors were in tears.

The jury indicated it was having trouble separating the evidence of psychiatrists in the trial, but it was told to resume deliberations today and re-examine evidence.